what are si units
base units
unit of length
metre m
unit of mass
kilogram kg
unit of electric current
Ampere A
unit of temperature
Kelvin K
unit of light intensity
candela cd
unit of matter
mole mol
km.h to m.s
divide by 3.6
prefix to non prefix
multiply by conversion factor
replace prefix with value
to convert non prefix to prefix
divide by conversation factor/ divide by conversion factor w opp sign
if already in scientific notation
multiply by conversion factor and add exponents
if unit squared or cubed
square/cube conversion factor